Commit 977b2d03 authored by Joerg Roedel's avatar Joerg Roedel Committed by Avi Kivity

KVM: SVM: Fix nested sel_cr0 intercept path with decode-assists

This patch fixes a bug in the nested-svm path when
decode-assists is available on the machine. After a
selective-cr0 intercept is detected the rip is advanced
unconditionally. This causes the l1-guest to continue
running with an l2-rip.
This bug was with the sel_cr0 unit-test on decode-assists
capable hardware.
Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 0521e4c0
...@@ -2799,6 +2799,9 @@ static int cr_interception(struct vcpu_svm *svm) ...@@ -2799,6 +2799,9 @@ static int cr_interception(struct vcpu_svm *svm)
case 0: case 0:
if (!check_selective_cr0_intercepted(svm, val)) if (!check_selective_cr0_intercepted(svm, val))
err = kvm_set_cr0(&svm->vcpu, val); err = kvm_set_cr0(&svm->vcpu, val);
else
return 1;
break; break;
case 3: case 3:
err = kvm_set_cr3(&svm->vcpu, val); err = kvm_set_cr3(&svm->vcpu, val);
......
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